Pure Kleen Air Duct Cleaning Scam Madison, Alabama

I own rental property in Huntsville. I call this company because they have an ad that says they will clean my air conditioning for $79.00  When they show up they start telling me about a free mold inspection so I say okay.  They then tell me that I have mold all over and they have to treat my vents for that.  Instead of charging me the $79.oo they try to charge me $4,000.00.  When I say no they say I will call my boss.  They call there boss and the boss says he will give me a special and will do all the work for $3,000.00.  The cleaners were very rude to me and made me feel scared so I said yes.  They ended up not doing any cleaning and now have my check for $3,000.00.  I called the company and was told someone would call me back.  Have not heard anything from company.  I feel like I was really ripped off as my property is only one year old and don't know how it can have mold and the vents and furnace are still really dirty.  I would say don't call this company.  It is a scam!